<template>
	<div class="list" ref='wrapper'>
		<div>
			<div class="area">
				<div class="title border-topbottom">当前城市</div>
				<div class="button-list">
					<div class="button-wrapper">
						<div class="button">{{this.currentCity}}</div>
					</div>
				</div>
			</div>
			<div class="area">
				<div class="title border-topbottom">热门城市</div>
				<div class="button-list">
					<div class="button-wrapper" 
						v-for="item of hot" 
						:key="item.id"
						@click="handleCityClick(item.name)"
					>
						<div class="button">{{ item.name }}</div>
					</div>
				</div>
			</div>
			<div class="area" v-for="(item,key) of cities" :key="key" :ref="key">
				<div class="title border-topbottom">{{key}}</div>
				<div class="item-list">
					<div class="item border-bottom" 
						v-for="innerItem of item" 
						:key="innerItem.id"
						@click="handleCityClick(innerItem.name)"
					>
						{{innerItem.name}}
					</div>
				</div>
			</div>
		</div>
	</div>
</template>
<script>
import Bscroll from 'better-scroll'
import { mapState,mapMutations } from 'vuex'

export default {
	name: 'CityList',
	props: {
		hot: Array,
		cities: Object,
		letter: String
	},
	data () {
		return {
			scroll
		}
	},
	mounted () {
		this.scroll = new Bscroll(this.$refs.wrapper)
	},
	computed: {
  		...mapState({
  			currentCity:'city'
  		})
  	},
	watch: {
		letter () {
			// console.log(this.letter)
			if(this.letter){
				const element = this.$refs[this.letter][0]
				this.scroll.scrollToElement(element);
			}
		}
	},
	methods: {
		handleCityClick (city) {
			// this.$store.commit('changeCity',city)
			// console.log(city)
			this.changeCity(city)
			this.$router.push('/')
		},
		...mapMutations(['changeCity']) 
	}
}
</script>
<style lang='stylus' scoped>
	@import '~styles/varibles.styl'
	.border-topbottom
		&:before
			border-color:#ccc
		&:after
			border-color:#ccc
	.border-bottom
	&:before
		border-color:#ccc
	.list
		position:absolute
		top:1.58rem
		left:0
		right:0
		bottom:0
		overflow:hidden
		.title
			line-height: .54rem
			background: #eee
			padding-left: .2rem
			color: #666
			font-size: .26rem
		.button-list
			padding: .1rem .6rem .1rem .1rem
			overflow:hidden
			.button-wrapper
				width:33.33%
				float:left
				.button
					margin: .1rem
					padding: .1rem 0
					text-align:center
					border:.02rem solid #ccc
					border-radius: .06rem
		.item-list
			.item
				line-height: .76rem
				padding-left: .2rem




</style>